MC_WriteParameter

MC_WriteParameter 1:

Parameters for the axis can be written with the function block MC_WriteParameter.

	In this case "axis" refers to the TwinCAT NC axis and not the drive.

Inputs


VAR_INPUT
    Execute         : BOOL;
    ParameterNumber : INT;
    Value           : LREAL;
END_VAR

Execute	The command is executed with the rising edge.
ParameterNumber	Number of the parameter to be written.
Value	This LREAL value is written.

Outputs


VAR_OUTPUT
    Done    : BOOL;
    Busy    : BOOL;
    Error   : BOOL;
    ErrorID : UDINT;
END_VAR

Done	Becomes TRUE, if the parameters were written successfully.
Busy	The Busy output becomes TRUE when the command is started with Execute and remains TRUE as long as the command is processed. If Busy becomes FALSE again, the function block is ready for a new order. At the same time one of the outputs, Done, CommandAborted or Error, is set.
Error	Becomes TRUE if an error occurs.
ErrorID	If the error output is set, this parameter supplies the error number

Inputs/outputs


VAR_IN_OUT
    Axis    : AXIS_REF;
END_VAR

Axis

Axis data structure

The axis data structure of type AXIS_REF addresses an axis unambiguously within the system. Among other parameters it contains the current axis status, including position, velocity or error state.